Featured Research

from universities, journals, and other organizations

New Target For Treating Leukemia Identified

Date:
October 8, 2009
Source:
Cell Press
Summary:
New research integrates sophisticated interdisciplinary approaches to solve a molecular mystery that may lead to alternative therapeutic strategies for acute myeloid leukemia (AML). The study identifies a previously unrecognized AML target that responds well to pharmacological inhibition and may be an excellent candidate for use in future clinical trials.

New research integrates sophisticated interdisciplinary approaches to solve a molecular mystery that may lead to alternative therapeutic strategies for acute myeloid leukemia (AML). The study, published by Cell Press in the October issue of the journal Cancer Cell, identifies a previously unrecognized AML target that responds well to pharmacological inhibition and may be an excellent candidate for use in future clinical trials.

AML is a type of blood cancer that disrupts normal blood cell production. "Long term survival for patients with AML remains poor despite dose-intensive chemotherapy regimens," explains senior study author, Dr. Kimberly Stegmaier from Dana-Farber Cancer Institute, Broad Institute of Harvard and MIT, and Children's Hospital Boston. "For older adults, long-term survival is dismal, and many older patients are unable to tolerate standard cytotoxic therapy." Unfortunately, identification of new treatment strategies has proven difficult as many potential targets are proteins that do not respond well to standard pharmacological methods.

Another challenge has been to unravel the molecular mechanisms associated with compounds that inhibit or reverse AML progression. Target identification is necessary for optimization of drug treatment. Dr. Stegmaier and colleagues had previously demonstrated that epidermal growth factor receptor (EGFR) inhibitors exhibited anti-AML activity. However, this finding was somewhat puzzling as EGFR is not expressed in AML. The researchers made use of sophisticated cross-disciplinary approaches to study gene expression (genomics) and protein structure and function (proteomics) to elucidate the molecular basis for the effect of EGFR inhibitors in AML.

Spleen tyrosine kinase (Syk) was identified as a target in AML. Syk is expressed in blood cells and is critical for proper blood cell differentiation. Recent research has implicated Syk in blood cancers, specifically lymphomas and leukemias. Genetic and pharmacological inactivation of Syk resulted in anti-AML activity in AML cell lines, primary patient samples and animal models of AML. Importantly, there are Syk inhibitors currently being tested in clinical trials.

These results identify Syk as a promising therapeutic target for treatment of AML. "With an orally available, well-tolerated Syk inhibitor currently in clinical development for other indications, our results should have immediate relevance for clinical testing of Syk inhibition in patients with AML," say Dr. Stegmaier. "Our study also validates the feasibility of integrating genetic and proteomic approaches to identify small molecules and their mechanisms of action."


Story Source:

The above story is based on materials provided by Cell Press. Note: Materials may be edited for content and length.


Cite This Page:

Cell Press. "New Target For Treating Leukemia Identified." ScienceDaily. ScienceDaily, 8 October 2009. <www.sciencedaily.com/releases/2009/10/091005123034.htm>.
Cell Press. (2009, October 8). New Target For Treating Leukemia Identified. ScienceDaily. Retrieved April 25, 2014 from www.sciencedaily.com/releases/2009/10/091005123034.htm
Cell Press. "New Target For Treating Leukemia Identified." ScienceDaily. www.sciencedaily.com/releases/2009/10/091005123034.htm (accessed April 25, 2014).

Share This



More Health & Medicine News

Friday, April 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Fungus Killing Bats, Spreading in US

Deadly Fungus Killing Bats, Spreading in US

AP (Apr. 24, 2014) A disease that has killed more than six million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. White Nose Syndrome, discovered in New York in 2006, has now spread to 25 states. (April 24) Video provided by AP
Powered by NewsLook.com
Companies Ramp Up Wellness to Lower Health Costs

Companies Ramp Up Wellness to Lower Health Costs

AP (Apr. 24, 2014) That little voice telling you to exercise, get in shape and get healthy is probably coming from your boss. More companies are beefing up wellness programs to try and cut down their health care costs. (April 24) Video provided by AP
Powered by NewsLook.com
Blood From World's Oldest Woman Suggests Life Limit

Blood From World's Oldest Woman Suggests Life Limit

Newsy (Apr. 24, 2014) Scientists say for the extremely elderly, their stem cells might reach a state of exhaustion. This could limit one's life span. Video provided by Newsy
Powered by NewsLook.com
FDA Wants To Ban Sales Of E-Cigarettes To Minors

FDA Wants To Ban Sales Of E-Cigarettes To Minors

Newsy (Apr. 24, 2014) The Food and Drug Administration wants to crack down on the use of e-cigarettes, banning the sale of the product to minors. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins